Best oil for scars?

[~me~]

I have heard and used Bio Oil. It was great when I was pregnant. I rubbed it into my tummy every morning and night, I don't have any stretch marks, it could be genetics

[Cherished]

I used bio oil once but it didn't remove the dark scars from eczema. My stretch marks aren't actually from pg, they were from my teenage years, which is weird as I wasn't overweight? I used a basic moisturizer during pg and didn't get any stretch marks. So I don't know about genetics, I was sure I'd get stretch marks in pg as I already had some.